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In a manufacturing process that is being controlled by control charts there are variables occurring that will affect the process output...

 

Variations in the process that are considered to be normal process variables are called:

 

a. Common causes b. Uncommon causes c. Special causes d. Random causes

 

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Question added by Muhammad Farooq , QA-QC MANAGER , AL Bawani contracting co.
Date Posted: 2016/05/28
Mohamed Helal
by Mohamed Helal , Project Manager , GROUP CONSULT INTERNATIONAL

................a. Common causes

Sathish Prabhu.V
by Sathish Prabhu.V , Manager - Operations & Process Improvement , Revolution Valves

Common causes are the normal variations in the process

Ksenija Kancelak
by Ksenija Kancelak , Construction Project Manager , City of Koprivnica, Koprivnica (Croatia)

I think the answer is:

a. Common causes

Ramzi SAMRI
by Ramzi SAMRI , Industrial engineer , Institut für Betriebliche Bildungsforschung Berlin (IBBF)

Thank you for the invitation. There 2 major types of variation: common which is inherent in the process and special which is caused by changes in the environment.

Two types of variables:

1- common which is inherent in the process

2- special which is caused by changes in the environment

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